Is there a simple way to obtain the following result in the table of content :

Contents

CHAPTER 1

Title of chapter                        2

1.1    Title of section                2

(the chapter title underneath its number and left aligned, just like everything else)

The following code used to do the job with MkII but it doesn't anymore with MkIV :

Instead, I get something like this (I hope it turns out readable through the email) :

where the 2 lines of the chapter, together with their alignment with the frame, get tossed to the right...

Thanks in advance !